Evidence map›Paper›PMID 12663769›Full record

ArticleJournal of virology2003

In vivo replication of an ICP34.5 second-site suppressor mutant following corneal infection correlates with in vitro regulation of eIF2 alpha phosphorylation.

Stephen L Ward, Donalyn Scheuner, Jeremy Poppers, Randal J Kaufman, Ian Mohr, David A Leib

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.4field-weighted citation impact, top 20% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 32 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 1 country.

Stephen L WardDepartment of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
Donalyn Scheuner
Jeremy Poppers
Randal J Kaufman
Ian Mohr
David A Leib
New York University · USHoward Hughes Medical Institute · USUniversity of Michigan–Ann Arbor · USWashington University in St. Louis · US

Funding

WASHINGTON UNIVERSITY CENTER VISION RESEARCHP30EY002687 · NEI · WASHINGTON UNIVERSITY · PI Philip Andrew Ruzycki · 1985 to 2026
$18.4M
VIRAL & HOST FACTORS IN HERPETIC REACTIVATIONR01EY009083 · NEI · WASHINGTON UNIVERSITY · PI David A Leib · 1992 to 2026
$10.3M
Control of Translation in Herpesvirus Infected Cells - Resubmission - 1R01GM056927 · NIGMS · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI Ian J Mohr · 1999 to 2026
$7.6M
NEI NIH HHS P30 EY002687NEI NIH HHS P30-EY02687NEI NIH HHS R01 EY009083NEI NIH HHS R01 EY09083NIAID NIH HHS AI036594NIGMS NIH HHS GM5692704
6 · The paper itself

Abstract

In animal models of herpes simplex virus type 1 (HSV-1) infection, ICP34.5-null viruses are avirulent and also fail to grow in a variety of cultured cells due to their inability to prevent RNA-dependent protein kinase (PKR)-mediated inhibition of protein synthesis. We show here that the inability of ICP34.5 mutants to grow in vitro is due specifically to the accumulation of phosphorylated eIF2 alpha. Mutations suppressing the in vitro phenotype of ICP34.5-null mutants have been described which map to the unique short region of the HSV-1 genome, resulting in dysregulated expression of the US11 gene. Despite the inability of the suppressor mutation to suppress the avirulent phenotype of the ICP34.5-null parental virus following intracranial inoculation, the suppressor mutation enhanced virus growth in the cornea, trigeminal ganglia, and periocular skin following corneal infection compared to that with the ICP34.5-null virus. The phosphorylation state of eIF2 alpha following in vitro infection with the suppressor virus was examined to determine if in vivo differences could be attributed to differential regulation of eIF2 alpha phosphorylation. The suppressor virus prevented accumulation of phosphorylated eIF2 alpha, while the wild-type virus substantially reduced eIF2 alpha phosphorylation levels. These data suggest that US11 functions as a PKR antagonist in vivo, although its activity may be modulated by tissue-specific differences in translation regulation.

Indexed as

Suppression, GeneticVirus ReplicationAnimalsCells, CulturedCorneal DiseasesEukaryotic Initiation Factor-2Gene Expression RegulationHerpesvirus 1, HumanKeratitis, HerpeticMicePhosphorylationViral ProteinsVirulenceEukaryotic Initiation Factor-2gamma 34.5 protein, Human herpesvirus 1Viral Proteins

Identifiers

PMID12663769
PMCPMC152123
OpenAlexW2123184914

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.